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9 Sheets-+Sheet 1. O. S. ELLIS. TYPE WRITING MAGHINE.

(No Mode 1.)

Patented Apr. 28, 18:96.

M.PHOTO-UTHO.WASHINGTDN.DC.

momma. 9 Sheets-Sh'eet 2. C. S. ELLIS. TYPE WRITING MAQHINE- No.559,128. Patented Apr. 28,1896.

AN DREW EGRAHAM. PHOYOUI'MQWASMINEIDwDC (No Model.) 9 Sheets-Sheet 4.

0. s. ELLi SL TYPE WRITING MACHINE.

No. 559,128. Patented Apr.

AN DREW BVGRANAM. PHOI'U-UTHQWASHI NGTDMD C.

(No Model.) 9 Sheets-Sheet 5.

G. S. ELLIS. TYPE WRITING MACHINE.

Patente d A r. 28 1896.

v I 07m AN BREW B.GRANAM. HO'I'OMTNQWASHIN GTON DC,

(No Model.) 9 Sheets-Sheet 6 c. s. ELLIS. TYPE WRITING MAGHINE.

PaItentedA r, 28, 1896.

(No Mode1.)' 9 She etsSheet 7.

0, s. ELLIS. TYPE WRITING MACHINE.

Patented Apr. 28; 1896.

oeoooooooo Ira 676207 "624%. 17m. 5 if ANDREW EGRANAM PHOTOLITHQWASHINGTOILD C (No Model.)

' 9 Sheets--Sheet 8. l 0. s. ELLIS. TYPE WRITING MACHINE.

Patented Apr.28,

EGBMMM. PHOTO-LUNG WASNINGTO (No Model.) 9 Sheets-Sheet 9. O. S. ELLIS.TYPE WRITING MAGHINE.

Patented Apr. 28, 1896.

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NITED STATES PATENT Fries.

CHARLES S. ELLIS, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE EILLISSOUTIUVICK COlllPANY, OF SAME PLACE.

TYPE-WRITING MACHINIE.

SPECIFICATION formingpart of Letters Patent No. 559,128, dated April 28,1896.

Application filed July 8, 1895. Serial No.'555,214. (No model.) I

To all whom it may concern.-

Be it known that 1, CHARLES S. ELLIS, of

Chicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Type-WVriting Machines and I dohereby declare that the following is a full, clear, and exactdescription thereof, ref crence being had to the accompanying drawings,and to the letters of reference marked thereon, which form a part ofthis specification.

This invention relates to improvements in type-writing machines of thatclass in which the types are carried on pivoted type-bars, and which arecommonly known as typebar or basket machines.

The machine herein shown as embodying my invention is of that type inwhich a sep-, arate key is provided for each character that the machineis designed to print, including both the upper and lower case letters.It will be understood, however, that the improve ments herein claimedare most of them applicable also to the shifting-carriage machines orthose in which the platen and its carriage are moved bodily by means ofa special key when it is desired to print the uppercase letters andcertain of the punctuationmarks.

The machine illustrated contains improvements in the paper-feedingmechanism embracing variable-spacin g devices by which the feed of thepaper is made to correspond with the width of the type, and features ofnovelty in other parts of the machine, as will be here inafter fullydescribed.

The invention will be more readily understood by reference to theaccompanying drawin gs, in which- Figure 1 is a view in side elevationof a type-writing machine embodying my invention. Fig. 2 is a top planView thereof. Fig. 3 is a view in rear elevation of the parts at therear of the machine. 'Fig. 4 is a cross sectional view of the lowerfront portion of the machine, showing the key mechanism; Fig. 5, thesectional elevation taken centrally through the basket, illustrating thearrange: ment of the type-bars. Fig. 6 is a plan view of the lower partof the machine as seen from beneath. Fig. 7 is a sectional plan viewtaken 011 a plane above the actuating bars and levers. Fig. 8 is adetail plan View from be neathof the parts adjacent to the rear end ofthe machine. Fig. 9 is a similar View of the parts of the front end ofthe machine. Fig. 10 is a detail sectional View taken on line 10 10 ofFig. 13, showing the mechanism for actuating the ribbonspoo1s. Fig. 11is a fragmentary detail section showing the carriage spring-drum and thecam thereon. Fig. 12 is a plan view of one end of the top plate, showingthe ribbon-shifting devices. Fig. 13 is a sectional elevation of theparts shown in Fig. 12, takenon line 13 13 of said Fig. 12. Fig. l4=is aperspective view of one of the slides which move the ribbon-spools. Fig.15 is a detail section taken on line 15 15 of Fig. 2b and showing theyoke for the movable stops of the feed device, Fig. 16 is a face View ofthe detent-bar forming part of the spacing mechanism. Fig. 17 is a sideelevation of the same. Fig. 18 is a perspective View of thereleasing-dog for the spring-pawl of the spacing device. Fig. 19 is avertical section. taken through the top plate at one end of the machine,showing part of the inking-ribbon-actuating devices and also the pivotsof the type-bars. Fig. 20 is an end View of the platen frame. Fig. 21 isa view in horizontal section of the platen-turningdevices. Fig.

22 is a detail face view of the front bar of the paper-carriage, showingthe carriage-stop and alarm-bell actuating devices. Fig. 23 is. asection taken on line 23 23 ofFig. 3. Fig. 24. is a horizontal sectionthrough the type-bar pivots.

As shown in said drawings, A designates the base of the machine, whichis preferably made of cast metal and of rectangular form, and A is a topplate, which is connected with the base by columns or standards A madeintegral with said base, and to the upper ends of which the top plate issecured by screws or otherwise.

B B designate the keys, which are" arranged in transverse rows or banksand placed one above and at the rear of the other at the front of themachine. They are secured to the upper ends of vertical stems l), whichextend through suitable guide-apertures in a transverse plate A whichlatter is supported at ICO its ends on suitably-elevated parts of thebase A and is formed with a plurality of steps a a, one for eachhorizontal row or bank of keys. A sheet-metal plate a, bent to conformto the several steps a, and enameled or otherwise finished, is in thisinstance placed over the plate A to afford an appropriate finish to themachine. At their lower ends the key-stems Z) are severally secured tothe horizontal arms of bell-crank levers B, Fig. 4,which are mounted tooscillate on rods 1), which are supported at their ends upon the sideplates of the framebase. The vertical arms of the bell-crank levers arepivotally attached to the forward end of horizontally-arrangedkey-actuating bars 13 which extend from front to the rear of themachinewithin the base and near the bottom thereof.

Referring now to the construction of the basket of the machine, 0indicates its upper marginal ring, which is supported within the usualcircular aperture in the top plate of the machine.

C indicates a plurality of type-bars which are pivotally mounted incircular order in said ring, and 0 indicates a corresponding series ordepending links which are operatively connected at their upper ends withthe said type-bars.

The lower ends of the links 0 are pivotally secured to the horizontalarms of the bellcra-nk levers C Fig. 5, which levers are mounted tooscillate upon transverse rods extending horizontally between the sidepieces of the frame-base. The depending arms of said bell-crank leversare pivotally secured to the longitudinal bar B at points between theends thereof. These several parts are so arranged that when the keys Bare depressed said bars will be drawn forward by the bellcrank levers l3and will operate through the bell-crank levers C to draw down the linksC and thereby the type-bars C. The spiral springs B Figs. 5 and 9, serveto return the bars B and connected parts to their normal positions afterthey have been moved by pressure on the keys, said springs being placedbelow the bars with their front ends attached to the depending lugs 12thereof and with their rear ends attached to stationary transverse bars12 supported on the side of the base, Fig. 9. Being of a diameterconsiderably greater than the width of the bars 13 the springs B", inorder not to interfere with each other, are arranged in two separaterows, one behind the other, the springs of the two rows being connectedto alternate bars 13 As shown, in this instance the bellcrank levers Band B are attached to short hubs, which are apertured for the passage ofthe pivot-rods, the levers being placed on said rods side by side withthe hubs in contact, in order to hold them from shifting cndwise on saidrods. The longitudinal bars B are in this instance made of flat stripsof metal, preferably cut or stamped from sheet metal and provided attheir upper edges with integral lugs b to which the depending arms ofthe bell-crank levers are pivoted by means of suitable pivot pins orstuds.

In order to simplify the construction of the parts, the bell-cranklevers B are distributed.

rods other convenient arrangements of the bell-crank levers may beemployed which does not involve an excessive lateral deflection of thelower ends of the links. The said bars are separated or held in theirupright position and parallel with each other by means of guide-pins bI), inserted one set in the forward cross-bar b and another set inanother cross-bar 19 located near the rear of the machine, said pinsrising from said crossbars between the actuating bars, Figs. 5 and 6.

Referring more particularly to the construction of the basket-ring (J,said ring is provided on its under surface with depending integralbrackets C having the form of flat vertical plates or flanges, whichstand at a considerable angle with reference to radial lines of thering. The type-bars O are pivotally supported between adjacent bracketsin groups, the machine shown in the drawings containing four in eachgroup. Each type-bar is provided with a rigidly-attached rock-shaft c,which is made of exactly the proper length for insertion between thedepending brackets. Said rock-shafts are hollow or tubular, and pivotalsupports for the type-bars are furnished by means of pivotpins orpintles c, which are inserted through the hollow rock-shaft and throughsuitablylocated holes or apertures in the said brackets, Fig. Thepintles c are preferably screw-threaded at one end to enter thescrewthreaded aperture in the bracket, the screwthreads being formed onenlarged parts or heads slotted to enable them to be easily inserted andremoved.

The rock-shafts of the type-bars are not placed tangentially withreference to the circle of the basket, but are arranged nearly atright-angles to the brackets 0 each of the type-bars being bent so as tostrike the center of the basket, notwithstanding said an gulararrangement of the pintles.

As herein shown, the bearing-apertures at one end of the rock-shafts arearranged in a vertical row adjacent to the outer edge of the bracketwhich they engage, while the apertures at the opposite ends of therock-shaft are arranged in an upwardly and outwardly inclined row, thelowermost apertures being located adjacent to 'the inner edge of itsbracket, while the uppermost aperture is located nearer the upper edgeof the bracket. The type-bar the pintle of which is placed lowermost ineach vertical row is located on said pintle immediately adjacent to oneof the brackets, while the type-bar on the uppermost rock-shaft islocated at the opposite end of the same adjacent to the next bracket,while the type-bars on the intermediate rockshafts are arranged thereonat intermediate points in a uniform manner.

The outer or type ends of the several typebars of each group are made ofdifferent lengths, as indicated in Fig. 5, according to the verticalposition of their pivot-pintles, the length of the bars being in allcases such as to bring the type accurately in contact with the platen atthe center of the basket when the body of the type-bar is thrown intoits horizontal position, so that the proper impression will be obtainedat Whatever level the type-bar is pivoted. At their outer ends thetype-bars are formed with short arms 0 which are pivotally connectedwith the upper ends of the connecting-links O Each of saidconnecting-links C is provided with a turnbuckle c by means of which itslength may be adjusted to give the exact amount of throw in thetype-bars that may be required. The usual padded ring 0 is located nearthe bottom of the basket in position to arrest the type-bars as theyfall back after being actuated. Said ring C is herein shown as supportedby means of depending arms 0 from the ring C. l

D designates as a whole a transversely-sliding carriage, which ismounted at the top of the machine and supports a cylindrical platen E,as herein shown. The frame of said carriage consists of parallel frontand rear bars D D which are attached at their ends to the rigid sideplates D The carriage is mounted to slide upon transverse ways A whichare located over the top plate within the front and rear frame-bars ofthe carriage and are secured to said top plate by screws passing throughthe lower horizontal flanges of the ways, as illustrated. 111 theparticular c011- struction illustrated the basket-ring C is supportedwithin the opening of the top plate by attachment to the under surfaceof said ways, thereby rendering unnecessary any special supportingdevice for the said ring. The outer or front face of the forward way Ais provided with a longitudinal groove a which is engaged by anantifriction-wheel cl, located on the rear or inner face of the frontcarriagebar D; The roller cl normally rests and runs upon the bottom ofthe groove a but its diameter is practically equal to the width of thegroove, so that it also prevents the front of the carriage from beingelevated. The rear way A is provided at its upper edge with arearward-projecting flange a having a depending rib a which engages acorrespond-1 ingly-shaped groove d formed in an inwardly-projectingflange cl on the rear framebar D of the carriage. The said rear framebarD is also provided with antifriction-rollers d 01 which rest and roll ona rearwardlyprojecting part of the base-flange of the rear way A Theengagement between the rib a and grooved flange cl maintains thecarriage in exact alinement with the ways and prevents its being liftedfrom the same at its rear ed e.

The cylindrical platen E is herein shown as journaled within a rigidframework, com pris- L-shaped end pieces E, Fig. 20, and transverserodsE and E which rigidly connect the outer or free ends of the L-shapedpieces,

the angle of said end pieces being provided with bearing-apertures forthe ends of the shaft E of the platen. The transverse bar E whichconnects the lower extremities of the end pieces, serves to pivotallysupport the usu al sheet-n1 etal paper-guide E which is provided at itsend with curved metal bars E ,hav-

ing apertured hubs, through which the rod E passes. The bars E projectat their lower ends below the guide-plate E and there 'support arelatively small guide-roller E, located just below the guide-plate Eand hereinshown as journaled upon pivot-pins which pass through the barsE and have adjust able screw-threaded engagement therewith.

Below the roller E a narrow transverse guide-strip E is secured to theends of the bars E, said strip being located immediately I spring-stripse are made of sufficient width to slightly overlap the ends of theroller E and serve to support the edges of the paper when the same ispassed beyond the roller E and the guide-strip E Coil-springs E Fig. 2,located on the ends of the rod E between the end pieces E and the bars Eand attached at its opposite ends to said side pieces and bars, tend toswing the lower ends of the bars E toward the platen and to thereby holdthe roller E yieldingly in contact with the same.

The platen-supp0rtin g framework thus constructed is herein shown aspivotally and detachably mounted in the carriage D, as follows: The endpieces E of said frame are adapted for insertion between the frameplatesD of the carriage and the ends of the uppermost rod E projecting outsideof said end pieces to form journal-bearings, which are adapted to restin open slots 01 located in the upper edges of the frame-plates D of thecarriage at points slightly to the rearward of the center line of themachine. The ends of the platen-shaft E also project past the end piecesE, and are adapted for engagement with open-ended arc-shaped slots d,

which are formed in the frame-plates D and arranged concentrically withthe lower or bearing ends of the slots (1. Said slots d terminate attheir lower. ends at points in a vertical plane, passing through thecenter of the basket, so that when the ends of the platenshaft resttherein the platen will be supported centrally over the basket. Asherein shown, the forward or outer sides of the slots 61 are madesomewhat longer than their rear or inner sides, thereby formingupwardlyprojecting prongs d in front of the slots, against which the rodIE will strike when slid forward upon the top of the frame-plates, atwhich time they will be guided into the said slots (1. The open upperends of the slots (Z are similarly provided with upwardly and rearwardlydirected prongs d acting as guides for the ends of the platen-shaft E.In this con struction, in order to place the platen on the carriage, theends of the rod E and shaft E are placed upon the upper surface of theframe-plates D and are slid forward thereon until they strike the prongs(1 when they will be at once guided into the slots in which theyrespectively belong. The shaft E is herein shown as extending at itsends considerably beyond the frame-plates D and is provided at its endswith wheels or disks a by which the platen may be conveniently turned ormanipulated.

The platen is held in its position above the center of the basket 0 by aholding device located 011 the carriage and adapted to engage the endsof the platen-shaft in such manner as to maintain the same within thelower ends of the slots (Z Such holding device, which is also adapted tomaintain the platen in its elevated position by engaging the platenshaft when the same is at the upper ends of said slots, is constructedas follows: D indicates a detent-lever, which is pivotally securedbetween its ends to the frame-plate D outside of the slot (1 and nearthe lower end thereof by a pivot-screw d The rear end of said detent isarranged to engage the front side of the platen-shaft when the latteroccupics the lower end of the slot (1 but the detent may be swung on itspivot so that its lower end will drop beneath the lower part of its slot6 and thus relieve the platen-shaft. D is a second detent-lever, whichis secured to the frame-plate D by a pivot-screw d", said lever beinglocated opposite the upper portion of the slot 61 The lower end of thedetent d overlaps the forward or upper end of the detent-lever D and theoverlapping ends of the levers are connected so that the lever will movesimultaneously by means of a pin d in one part engaging a slot d in theother part. Near its upper end the detent-lever D is provided with anupwardly-facin g shoulder c1 which projects part way across the slot dat the time the rear end of the detent-lever dfis shifted or standsopposite the slot. Oscillatory movement of the two levers D D is limitedby a stop-pin 61 which is secured in the frame-plate and engages a shortsegmental slot 01 in the detent-lever D A leaf-spring D is secured tothe carriage-frame and exerts a constant pressure on the lower end ofthe detent-lever D in such manner as to throw the ends of such leversacross the slot 61 and into position to engage the platenshaft. Saidspring D, as herein shown, is made of curved or C form and is secured atits lower end to the lower horizontal bar of the frame-plate D and ishooked at its upper end over an outWardly-proj ectin g pin or stud (Z inthe detent-lever D. A finger-piece D at the upper end of thedetent-lever D onables the two detent-levers to be rapidly swung clearof the slot (1 against the pressure of said spring 1).

In placing the platen on the carriage the detent-levers described aredrawn back far enough to permit the platen-shaft to pass the shoulder d.After passing said shoulder the shaft may drop freely to the lower endsof the slots, where the shaft will be engaged by the rear end of thelower detent-lever, and in raising the platen the detents are withdrawnfar enough to release the platen-shaft, and the latter is then swungupwardly to a point beyond the shoulder (Z which latter will be thrownby the action of the spring beneath said shaft and will hold the platenin its ele vated position until the detents are again withdrawn.

It will of course be understood that the swinging movement of the platendescribed is to enable said platen and the paper held thereon to beswung upwardly and forwardly, so as to bring the line being printed intoposition for inspection by the operator.

The platen E is provided at one end with a rigidly-securedratchet-flange E, through the medium of which the necessary rotation ofsaid platen required to move the paper along from line to line iseffected. To hold the platen against rotation while the printing isbeing accomplished, said ratchet-flange is constantly engaged by adetent-spring e, which is socured to one of the end pieces E and engagessaid ratehet at its free end. For giving rotary motion to the platen,devices are provided as follows:

D indicates a reeiprocatory horizontal bar, located at the lower edge ofthe frame-plate D adjacent to the rigid frame E Said bar in thisinstance is provided at its front and rear ends with slots d throughwhich are loosely inserted guiding and supporting studs d", which aresecured in arms (Z depending from the frame-plate D Between its ends thebar is provided with inwardly-projecting lugs d, between which ispivotally mounted a pawl d adapted for engagement with ratchet-flange ofthe platen. A spring (1 is applied to act on the pawl, so as tothrow itinto contact with the ratchet. At its forward ends the bar D is providedwith an upwardlyprojecting part D which is pivotally connected by meansof a link D with a swinging lever D Said lever D isarranged parallel tothe front bar of the carriage and is pivoted at one end by means of avertical pivot-pin (Z to the carriage, and its opposite end is connectedwit-h the link D Said lever D is pivoted to the carriage at its end,which is at the right hand when facing the machine, and the lever isprovided on its outer face with a projecting finger-piece or handle I),which stands outwardly at right angles thereto and .projects at thefront of the frame toward the operator, so that when pressure is appliedto said finger-piece in a direction to move the carriage back to itsstarting-point or toward the right the lever will be swung 011 its pivotand the bar D will be drawn outwardly. Said bar is held in its backwardretracted position by a coiled spring D attached to a stud J on the barand to one of the depending arms (Z The link D is shown as bent at rightangles near its outer end, so as to reach the lever D, which is notarranged in exact alinement withthe bar D WVhen it is desired to ro-'tate the platen, the lever D is swung on its pivot by means of thehandle D and the reciprocatory bar is thereby thrown forward against theaction of the retracting spring D and in the movement of said bar thepawl 61 will act on the adjacent teeth of the ratchet-flange E and thusimpart a rotary motion to the platen, the extent of which will dependupon the extent to which the bar D is moved.

D designates a rotary sleeve, which is provided with an enlarged milledhead 61 and is revolubly secured by means of a pivot stud or screw (Z tothe face of the front carriage-bar D, adjacent to the free end of thelever D. The head of the sleeve is adapted to project into the path ofthe free end of the lever D and forms a positive stop by which theoutward movement of the lever is limited. Said sleeve is also providedabout mid way of its length with a stop pin or shoulder d which, by theturning of the sleeve, may also be brought into the path of the lever Dand will then restrict the movement of the latter to about half thedistance permitted by the milled head. Ordinarily the parts will be soproportioned that the movement of the lever D before striking the milledhead of the sleeve will be sufficient to rotate the platen to the extentof two teeth of the ratchet, while the movement permitted by the stop c1will only be sufficient to rotate the platen to the extent of one toothof the ratchet. It follows that by turning the sleeve so as to throw thestop (1 into or out of the path of the lever D a single or double spacemay be secured between the lines, as desired. A spring-actuated pin (Zis arranged -to engage either one of two recesses in the sleeve D tohold the sleeve from being aocidentally turned, the said pin having arounded end toengage the sleeve, so that it will slip out of therecesses when some force is applied to turn the sleeve.

The carriage is maintained under a constant tension, tending to draw itacross the machine from right to left by a drum F, which is turned bythe carriage-actuating spring. Said drum is located at the left-handside of the machine-frame in the same vertical plane with the rear barof the carriage-frame, and is connected with said bar by means of aflexible strap F, which is attached at one end to the periphery of thedrum and its opposite end to said bar. Said drum is revolubly mounted inthe usual manner upon a horizontal shaft G, journaled in suitablebearings g on the innerfaces of the frame-stand ards. The shaft isprovided with the usual rigidly-attached spring-barrel G, which extendsinto the drum F and to which the inner end of the coil-spring G Fig. 11,is secured in a familiar manner. A suitable key or handle G on the endof the spring-barrel enables the shaft G to be turned to give anyrequired degree of tension to the spring. The shaft is adjusted to holdagainst rotation under the tension of the spring by means of arigidly-attached ratchet-wheel G Fig. 19, which is controlled by anordinary escapement-lever H, pivoted to the adjacent frame-standard in afamiliar manner.

The usual inking-ribbon commonly employed in this type of machine iswound upon drums or spools I I, which are revolubly mounted at oppositesides of the machine beneath the top plate. The drum I at the lefthandside of the machine is herein shown as loosely mounted upon the shaft G,and is adapted to slide longitudinally upon the same. The drum. 1 at theopposite side of the machine is mounted upon a horizontal shaft Ijournaled in bearings secured to the standards at the right-hand side ofthe machine, said drum being arranged to engage a feather t on saidshaft I so as to be held from rotation on the shaft.

J J are sliding frames mounted on guiderods J, which are arrangedbeneath the top plate above and parallel with the shafts G and I Saidguide-rods J are supported by depending brackets j from said top plate.The guide-frames J as more clearly seen in Fig. 14, consist of sideplates j j, which are connected by cross-barsj and are provided withbearing-aperturesj fi which engage the guide-rods J. Said side platesjjare also connected by means of L-shaped guide-plates J which serve asguides for the ribbon, the upper ends of said plates extending throughtransverse slots or openings J 3 in the top plate of the machine andresting on horizontal guide-su1'-facesj which are formed at the innersides of said slots or openings in the manner illustrated, Figs. 12 and2. Said side plates j j are also extended downwardly in the form of armsor prongs far enough to engage the outer end surfaces of the drums I I.

Devices for giving simultaneous endwise movement to the drums, so as toshift the ribbon sidewise with reference to the type, are provided asfollows: K is a transverselyarranged rock-shaft, which extends acrossthe machine-frame near the base thereof and which is herein shown asmounted in bearings at the lower ends of the front standards of themachine. To the opposite ends of said shaft are securedupwardly-extending rigid arms K, to the upper free ends of which arerigidly attached horizontal sliding bars K K located in suitable guidesbeneath the top plate outside of sliding frames J. At both sides of themachine the bars K have pivotal connection with horizontally-oscillatinglevers K which are arranged parallel with the front of the machine andare pivoted at their upper ends to the frame-plate by means of pivots7c, and are connected at their inner or free ends with the slidingframes J by means of pivot-studs secured in the cross-barj of saidframe, as clearly shown in Fig. 19. The bar K at one end of the machine,Fig. 1, terminates at the lever K but at the opposite end of themachine, Figs. 12 and 13, said bar extends across the machine andterminates at a point near the drum F, where it is connected with thevertical arm of a bellcrank lever K", which is pivoted by means of asmall stud k to the adjacent frame-standard, said pivoted frame beinglocated considerably below the shaft G. The upright arm 70 of saidbell-crank lever is made of considerable length, but the horizontal arm76 thereof is much shorter and is engaged with a vertically-slidin g barK by means of a pivot-pin k on the said bar, which engages a slot 70 inthe said arm. Said bar K is shown as mounted to slide vertically on themachine-frame through the medium of vertical slots 7t 70 in the lowerand upper ends of the bar, the lower slide engaging a stud 7e", attachedto a bracket k on the adjacent frame-standard, while the upper slot kengages a stud 7t, secured to a depending bracket k, which is attachedto the under surface of the top plate. Said bar K is bent or offset nearits upper end to avoid the shaft G and the bearing g thereon. Mounted onsaid bar K below the shaft G is a pin 7a, which is adapted forengagement with a cam F attached to the drum F, which cam isconstructed, by its action on the pin k to give vertical movement to thebar K in one direction, the said pin being held in contact with the camby means of a suitably applied and located spring K. The cam F acting onthe bar K, as described, serves to move said bar vertically, and suchvertical movement of the bar serves to give a longitudinal movement tothe bar K which is much greater in extent than the vertical movement ofthe bar K owing to't'he difference in length between the two arms of thebell-crank lever K. The endwise motion of the bar K is transmitteddirectly to the adjacent sliding frame J by the lever K and indirectlyto the sliding frame at the opposite end of the machine through themedium of the rock-shaft K, the arms K K thereon, the bar K and lever KBy the construction described as the carriage moves to the left in theusual step-bystep manner when the keys are struck the drums I I andslides J J, bearing the inkingribbon, will be gradually moved forwardand will carry the inking-ribbon with them, so that the latter willpresent a new surface to the action of each succeeding type.

To provide for giving rotary motion to the drum Z, a pawl is mounted onthe forward frame of the standard in position for contact with theadjacent end of the drum, and said drums are provided with ratchet-teethto en gage said pawl, the pawl being held in posi tion for engagementwith the drum by means of a stop-pin'1l arranged adjacent to itspivotstud I in a familiar manner. As the drum approaches the forwardlimit of its movement the pawl, arranged as described, will give thedrum a slight rotary movement by which the ribbon will be fed along ashort distance, so that in the printing of the succeeding line anentirely new transverse section of the ribbon will be presented to theaction of the type. In this manner the ribbon will be gradually unwoundfrom the drum 1 and wound upon the drum I by a succession ofintermediate rotary impulses imparted to the drums at the end of thelongitudinal reciprocation of the latter, so that when it has been fedalong its entire length other portions of the ribbon will have beenexposed to the action of the type. A crank-handle on the rear end of theshaft I enables the ribbon to be wound upon the drum I in the firstinstance and to be rewound upon the same after having been wound uponthe drum I by the action of the machine in the manner stated.

D indicates an adjustable stop for limiting the movement of the carriagetoward the righthand end of the machine, or, in other words, fordetermining the left-hand margin. of the printed page. As herein shown,Fig. 22, said stop is mounted on the front frame-bar D of the carriage,and it consists of a metal block having a flange which fits within anelongated slot D in the said frame-bar D, a clampingscrew D beinginserted through the said slot and engaging the block to clamp it in anydesired position on the frame-bar. At its righthand end the said blockis provided with a downwardly-proj ecting tooth, which is adapted tostrike against a stop-shoulder D on the top plate of the machine whenthe end of the platen reaches a point adjacent to the center of thebasket. The exact position of the carriage at the limit of its movementwill of course depend upon the position to which the stop is adjusted onthe bar D, which position may obviously be varied as desired.

IIO

The mechanism herein shown for control-,

ling the feed motion of the carriage is of that kind known as a variablefeed, the same being so constructed that as the carriage is advancedstep by step to bringthe paper into position for the successive actionof the types on the paper it is moved through variable distances tocorrespond with the varying widths of the type-faces, it beingunderstood that the types carried by the several bars maybe of anydesired Width and may embrace any desired number of letters, since theinvention contemplates a movement of the carriage by each key a distancecorresponding with the space required by the type actuated by that key.Said spacing mechanism is shown more clearly in Figs. 3, 5, 15, 16, and17, and is constructed as follows: L indicates a revolving shaftarranged horizontally at right angles with the path of the carriage atthe rear thereof, said shaft being herein shown as j ournaled inbearings 7t is, attached to the top plate of the machine, which plate isextended rearwardly in its part adjacent to the shaft to support saidbearings. Said shaft L is provided witha gear-wheel or pinion L, which intermeshes with a rack L secured to the rear bar D of thecarriage-frame, so that endwise movement of the carriage under pressureof its actuating-spring imparts a rotary motion to said shaft.

The rotation of the shaft L is controlled and the carriage is therebyarrested after movements through varying distances upon reaction of theseveral key-levers through the medium of devices constructed as follows:L designates a ratchet-wheel which is rigidly secured to the rear end ofthe shaft L and which has its teeth so directed that those at its toppresent their abrupt faces toward the side of the machine toward whichthe carriage is moved by its actuating-spring. M is avertically-arranged longitudinally-reciprocating bar which is locatedadjacent to the rear face of the ratchet-wheel. Said bar is supported orguided by means of a yoke M, attached to the top plates of the machineand provided with a horizontal bar elevated above the said top plate,which bar is provided with a central guide notch or recess m in whichthe upper part of the bar M is held and slides. Said bar M is providedat its upper end with a detent projection or tooth m, which is adaptedto engage the teeth of the ratchet-wheel L at the top of the same.

N is a swinging detent-arm which is pivoted to the inner face of thedetent-bar M, so as to swing in a plane parallel with the ratchetwheel.Said arm is provided at its lower end with a detent projection 71, whichextends beneath the ratchet-wheel and is provided with a spring-pawl n,adapted for engagement with the ratchet-wheel teeth. The detent-arm N isadapted to swing through an are at the lower part of the ratchet-wheeland, preferably, at either side of a vertical line passing through thecenter of the ratchet-wheel, and

the pawl n is located at such distance vertically from the detent-toothm that only one of said parts can be engaged with the ratchet at thesame time, the parts being so constructed that when the detent-bar isdepressed to bring its tooth m into engagement with the ratchet-wheelthe pawl n will be released therefrom, and vice versa. Said arm N isactuated in one direction by means of a spring N suitably appliedbetween the same and the bar N. In the particular constructionillustrated, the spring referred to has the form of a coiled spring,which surrounds the piv0t-- stud N of the arm N, said pivot-stud passingthrough the bar M and being provided at its onterend with a disk n whichis secured to the shaft and is provided with a series ofcircumferentially-arranged holes 11 in either of which the end of thespring may be inserted to give a desired tension thereto. The bar M, asshown, Fig. 17, is provided with an integral sleeve or hub M, whichforms a bearing for the stud M and against the end of which the disk 01is adapted to bear, so as to hold the stud from endWise movement, saiddisk being fitted over the squared end of the stud and held thereon by ascrew N inserted in theend of the stud. The coiled spring N in thisconstruction surrounds the hub M between the bar and the disk 72 Thespring N tends to turn the arm N in a direction opposite to that inwhich it is moved when its pawl 41 is engaged with the ratchet wheel,under the action of the carriage-actuating spring, and said spring N isadapted to exert much less force or pressure on the arm N than isexerted thereon by the said carriage-actuating spring, so that said armwill be held by the action of said carriagespring normally at the limitof its possible movement in the direction in which the ratchet-wheelturns in the advance of the carriage. The movement of said arm in thedirection mentioned is limited by a stop, herein shown as formed bymeans of a bent bar N, attached to the bar N.

Then the detent-arm is released from the ratchet-wheel by the loweringof the detentbar M, its actuating-spring N will throw said detent-arm ina reverse direction, or away from said stop, until its movement isarrested by striking an adjacent part of the machineframe. Theoscillatory movement of the arm N under the action of itsactuating-spring N is limited by a series of movable stops 0, O, 0 and 0located below the path of the free end of said arm and adapted to bethrown upwardly into the path of said arm, so as to limit the movementthereof at intermediate points in its path. The said stops 0, 0, O and 0have the form of vertically-arranged sliding bars, which rest invertical guidepassages o, o, '0 and 0 formed in a guide bar or yoke 0which is located below the path of the detent-armand is supported at itsends by attachment to depending lugs 0 0 secured to the top plate of themachine.

An upwardly-projecting arm O at one end of the yoke 0 serves as astationary end stop to limit the movement of said arm under theoperation of its actuating-spring N when all of the movable stops arewithdrawn. The guide-passages 0, 0,o and o are herein shown as formed byvertical grooves in the front face of the yoke 0 which grooves arecovered and the bars confined therein by means of a front plate 0 Theseveral sliding bars 0 to O constitute stops which limit the forwardmovement of the detent-bar under the action of its actuating-spring, andwhen said stops are all of them withdrawn said bar is free to movethrough its greatest extent of movement, or until it strikes the endstop 0 The stop bars 0 to O are arranged at an angular distance apart,referring to the center of movement of the oscillating detent-bar,corresponding with the angular distance between the teeth of theratchet-wheel. Similarly the end stop 0 is located at an angulardistance in advance of the stop-bar 0 equal to one ratchettooth. Itfollows that five units of movement, each equal to one ratchet-tooth,constitute in this instance the total possible radial movement of thedetent-ar1n N from its place of rest. The several stop-bars O to 0 areseverally given en dwise movement for the purpose of presenting them inposition to act as a stop for the detent-arm through the medium of thedevices hereinafter described, which are actuated by the severaltype-actuating bars 15 when the corresponding keys B are struck.

The pawl m is adapted to yield to permit the backward turning of theratchet-wheel, so as to allow the backward turning of the shaft. Thisenables the carriage to be returned to its starting-point by theoperator either when the end of a line is reached or at any timedesired, the shaft L at such time merely turnin g backward as thecarriage is moved, without affecting in any way the action of thefeeding devices. The pawl n is herein shown as formed on the upper endof a sliding block, located in a guide-recess in the projections n andheld in operative position by a spring 714, placed in said recessbeneath it, the upward movement of the pawl being limited by a stud awhich passes outwardly through a slot n in the arm in the mannerillustrated in Figs. 16 and 17.

The bar M is given vertical reciprocatory movement through the medium ofsuitable connections with the keys, whereby each time any one of thekeys is depressed said bar M will also be depressed, and when the key isallowed to rise the bar will be elevated. Devices for actuating the saidbar M are herein shown as made as follows: P indicates arockshaftmounted transversely at the rear part of the machine-frame just abovethe several reciprocating bars B Said rock-shaft is provided with arigidly-attached depending leaf or blade P, the lower free edge of whichis located in close proximity to the several longitudinal bars B Eachone of said longitudinal bars is provided at its upper side with a stoppin or projection b arranged for contact with the blade P. A suitablespring P herein shown as a contraetible coiled spring, is applied insuch manner as to throw the free edge of the blade P into contact withthe projections 011 the key-actuating bars. Said spring is shown, Figs.5 and 6, as attached at one end to a rigid upwardly-projecting arm I) onthe rocleshaft and at its opposite end to a stationary arm or bar If onthe machine-frame. To the said rock-shaft is attached arearwardlyprojecting arm P which is connected by means of anintermediate bar P with the barM. A coiled spring P, attached to the barM below the top plate of the machine and also to said top plate, as seenin Fig. 3, serves to support the weight of said bar and aids in holdingthe blade of the rock-shaft in contact with the several proj ections 11It follows from this construction that when either of the keys areoperated the detent-bar M will be moved.

Vertical movement is given to the several stop-bars by means of suitableconnections between the latter and four transverse rockshafts Q, Q, Qand Q which are mounted in the base of the frame parallel with therockshaft P. Each of said rock-shafts is provided with a depending bladeq, q, (1 and (1 the lower edges of which are located in close proximityto the longitudinal bars 13' and engage projections U", I), b and hthereon. Suitably-arranged springs Q are applied to the severalrock-shafts in such manner as to normally press the lower edges of theblades rearwardly against the front sides of the projections 17 h h andb on said bars 13 The said springs Q are in this instance ordinarycoiled tension springs, secured at their rear ends toupwardly-projecting rigid radial arms g on the rock-shafts and at theirfor ward ends to the inwardly-projecting arm I) and another similar armon the frame-base of the machine. The several rock shafts Q Q Q Q areprovided with rigid radial arms g g 1 which are connected by means oflinks q", (1 and Q11 with the lower or vertical ends of bell-cranklevers R, R, and R Fig. Said bell-crank levers are mounted on atransverse shaft R located at the top of the frame-base betweenupwardly-projecting flanges thereon, and their horizontal arms areconnected with the sliding stop-bars O O O by means of connecting-rodsr, r, and T The rock-shaft Q, which actuates the stopbar 0, is providedwith a horizontal rigid arm Q which is directly connected with saidstopbar by a vertical-rod T for a purpose hereinafter stated. Each ofthe rocleshafts Q to Q is actuated by a limited number of thekeyaetuating bars 13 and'each one of said bars is provided with one orin some cases two stop projections, so that the same bar will givemotion to one or in some instances two of said rock-shafts, it beingunderstood that the stop projections shown in Fig. 5'represent thosenearest the eye of the several rows of pins, of which only one or twoare attached to the same bar.

From the construction described it will be seen that the shaft L will beheld from turning under the pressure of the carriage-actuating spring byengagement of the ratchet either with the detent m or the pawl n, andthat when the pawl n is engaged with the ratchet-wheel the turning ofthe latter will be prevented by contact of the detent-arm N with thestop-arm N, as seen in Fig. 3.

It will be further seen that when the pawl is engaged with theratchet-wheel and the arm B is in contact with the stop-arm N, if thebar M be depressed to release the pawls n and engage the detent-tooth mwith the ratchet-wheel, the detent-arm will be swung by the spring untilarrested by contact of one of the stop-bars O to O or by contact withthe end stop (1 The extent of angular movement of the pawl anddetent-arm under the action of the spring will obviously depend uponwhich one of the stop-bars may be lifted at the time. As the saidstop-bars and the end stop 0 are separated from each other by angulardistances, each equal to the length of one of the ratchet-teeth,measured in degrees, it follows that the detent-arm will be turned anangular distance of one, two, three, or more teeth, according to thestop-bar which is then projected into the path of the said arm, or incase the said bars shall have all been withdrawn according to thedistance from the stop-bar N to the end stop 0 The tooth m also standsin fixed relation to the several stop-bars and the end stop, so thatwhenever the bar N is depressed the said tooth will en gage and hold theratchet-wheel in the same position in which it was held by the stop baror end stop. It follows that when one of the stop-bars is lifted inposition to arrest movement of the arm N the depression of the bar Mwill release said arm and allow the latter (which had theretofore beenheld from turning by its engagement with the ratchetwheel) to swing backand thus carry its pawl or into position for engagement of another toothof the ratchet, the movement of the arm being through a distance equalto the angular distance of the stop-bar which is then in position toarrest the arm from the starting'point of said arm, such starting-pointbeing the position at which it stands when released. Consequently whenthe detent-tooth and pawl are vibrated by the successive operations ofthe keys the shaft L will be caused to revolve intermittingly or by astep-by-step movement by the force of the carriage-actuating spring, andthe extent of such movem ent of the shaft and the corresponding movementof the carriage will be determined by the extent to which the detent-armhas been previously allowed to turn on the detent-bar by the action ofthe spring N before having the release of key from pressure.

its movement arrested by one of the stop-bars or by the end stop 0 Theforward movement of the carriage and the attendant rotary movement ofthe shaft of course takes place immediately after and in consequence ofthe retraction of the detent-tooth from engagement with theratchet-wheel, or, in other words, upon Each time the shaft is thusturned by the action of the carriage-actu atin g spring the spring N",which turns the detent-arm, must of course be under its maximum tension,to which end it must be of such proportionate strength that it may bereadily overcome by the force of the carriage actuating spring, whilesufficiently strong to promptly turn the said arm the greatest distancethe latter may require to be moved. 3

In order that the device may be operated with as little power aspracticable, I prefer to arrange the stop-bar which causes an extent offeed motion common to the greatest number of keys so that it will occupynormally or usually an elevated position, or will commonly stand in thepath of the arm N, so that movement of that particular stop-bar will beunnecessary except when the arm needs to pass it for reaching otherstop-bars, in which case said normally-elevated bar will be depressed.Inasmuch as, in a machine having five units of movement, the unitcommonto the greatest number of types will be that of two units, the stop-barO, which affords two units of movement, is herein shown as arranged tostand normally elevated, so that the arm N will always strike this barunless the stop-bar 0 be elevated, or unless the bar 0 be depressed andeither the bars 0 O or the stationary stop 0 be brought into action. Thewithdrawal of the two-unit stop-bar 0 instead of its advancement isaccomplished by its direct conneetion of the rock-shaft Q with the saidstopbar, as hereinbefore described, whereby said stop-bar 0 will bewithdrawn through a movement of the key-actuating bars B in the samedirection by which the other stop-bars are elevated. Inasmuch, however,as the with drawal of the two-unit-space stop-bar O is needed at thesame time that the stop-bars O and O are elevated, it follows that allof the typeactuat-in g bars B which are constructed to actuate the saidstop-bars O and 0 must also be arranged to actuate the stop-bar O, andall of the bars which operate the stop-bars O and 0 will therefore beprovided with two stop projections for engagement of the blades of tworock-shafts, one of said stop projections in the case of each keyserving to actuate and depress the stop-bar O, whilethe other actuatesand elevates a stop-bar O or 0 Moreover, inasmuch as the withdrawal ofthe stop bar 0 is necessary to enable the. arm N to reach the end stop 0for giving the greatest extent of feed movement, it follows that theactuating-bars B of allthe types requiring the greatest extent of feedmust have a stop projection engaging the flange of the rock shaft Q,which serves to withdraw the said two-unit-space stop-bar 0.

It will further be understood that the number of stops or stop-bars andthe number of rock-shafts for actuating the same may be increased ordecreased to provide for a greater or less number of type-groups, and itfollows that the machine may be provided with type characters or wordsof any desired width, it being only necessary to add a stop-bar andactuating device therefor for each additional width of type to beprovided for.

In order to enable the carriage to be released from the control of theautomatic feed mechanism when it is desired to move the carriage byhand-as, for instance, in inserting a letter in place of an erased onelhave provided a device as follows: N is a lever which is pivoted to therear of and adjacent to the free end of the detent-arm N and adjacent tothe face of the yoke 0 Said lever is arranged to swing in a verticalplane and normally stands in an approximately horizontal position. Nearit free end it is provided with an arm or dog N so located as to come incontact with a part of or attached to the pawl n, in this instance itbeing arranged for contact with the screw-stud a. The dog N is hereinshown as attached to an upwardly-extending portion of the lever N but itmay be attached in any desired manner to said lever provided it belocated in position to engage the pawl a to shift the position of thesame. The free end of the lever N is connected with a vertically slidingrod N, which passes through the top plate of the machine, and isprovided at its upper end with a button N by which the rod may bedepressed against the action of a lifting-spring N, which tends to holdit and the free end of the lever N in an elevated position, as hereinshown. The spring N is a coiled spring placed between the button N andthe top plate; but it may be otherwise arranged as desired. Theactuating-arm N of the lever N is held by the spring N normally aboveand free from contact with the stud n at the time the frame N is incontact with the stop-arm N, this being the position which it maintainsat times when the machine is at rest, as seen in Figs. 3 and 15. If whenthe parts are in this position the lever N be depressed by pressingdownwardly on the button, the pawl n will be released from theratchet-wheel, and the latter will then be free to turn, so that thecarriage may be moved back and forth by hand freely and withoutrestriction. XVhen the carriage has been brought to a desired point,release of pressure on the button N will allow the lever N to rise andthus permit the reengagement of the pawl with the ratchet-wheel.

It will be noted that the part herein termed the pawl 07, does not inthe usual operation of the feeding device perform the function of apawl, as that term is commonly used, but that it acts merely as thedetent or pallet of an escape mechanism to control the advance movementof the ratchet, acting as a pawl only when the ratchet is turnedbackward in the backward movement of the carriage. If, therefore, saidpawl be not required to enable the carriage to be moved backward, saidpawl need not be movable, but would then form merely a stationaryprojection on the swinging-arm N.

As an improved means of mounting the several pivot-rods for thebell-crank levers, the rock-shafts, and the cross-bars which support thekey-actuating bars in the machine frame base, I provide within said basea separate or auxiliary frame consisting of side pieces A and a rearcross-piece A preferably made integral with each other, the same be ingconstructed to fit closely within and against the side and rear walls ofthe framebase A. The bell-crank pivot-rods are attached directly to theside pieces A, while the rock-shafts are mounted in suitablebearingapertures therein. The cross-bars which support the key-actuatingbars are attached to the lower edges of said pieces A, preferably bymeans of depending projections on the side pieces, which are employed inorder to avoid making the side pieces unduly wide and heavy. As a meansof detachably securing the inner frame to the base A, said inner frameand base is shown as provided with inwardly projecting lugs a and a,through which are inserted holding bolts or screws CH. The employment ofsuch inner or auxiliary frame as a support for the several working partswithin the frame-base has the important advantage of enabling all ofsaid parts to be removed from the frame for adjustment and repairs,while greatly facilitating the original construction and assembling ofthe parts.

An alarm-bell mechanism of simple form is provided on the machineillustrated, the same being shown in Fig. 22 and made as follows: Rindicates a bell, which is supported beneath the top plate at the frontof the machine by means of a bracket R, and S indicates a bellhammerlever arranged vertically and pivoted at s beneath the top plate, withits short upper arm 8' extending above the top plate at the rear of thefront bar D of the carriageframe. Secured to said bar is an adjustableblock S, carrying a swinging trip-dog S, which depends from the block insuch position as to strike the upper end 3 of the hammer-lever as thecarriage moves from right to left, said dog S being pivoted at therighthand side of the block S and is adapt-ed to bear at its right-handside against an abutting surface or shoulder thereof, so that the dog isprevented from swinging from its vertical position toward the right,butis perfectly free to swing in the opposite direction or-toward theleft, so that it will pass over the bell-hamm er lever in the backwardmovement of the carriage. Said block S isadjustably secured on thefrontbar of the carriage-frame by means of a slot D on said bar, intowhich fits a flange or projection on the block, the block beingadjustably secured in the desired position by means of a thumb-screw Dinserted through the slot from the front face of the carriage andtherefore in convenient position for the hand of the operator. Adjustment of the sliding block S and a trip-dog thereon obviously enablesthe action of the alarm-bell to be controlled in accordance with thewidth of the paper on which the printing is being done. The bell-hammeris in this instance actuated solely by gravity; but the hammer may be aspring-actuated one with the same result as far as operation of thetripping device is concerned.

1 claim as my invention- 1. As a means of controlling the feed 1110-tion of a type-writing machine, a ratchetwheel which is given motion bythe papercarriage, a detent-bar which reciprocates in a plane parallelwith the plane of the ratchetwheel and is provided with a cletent-toothengaging the wheel at one side of the latter, a spring-actuated,oscillatory detent-arm pivoted to said bar and adapted to engage thesaid wheel at the opposite side thereof, said detenttooth and detent-armbeing moved in the plane of the ratchet-teeth alternately into and outof engagement with the same, a plurality of separately-movable stopsadapted to limit the movement of the said detent-arm with relation tothe detent-bar, and operative connections between the keys ands-aiddetentbar and stops for actuating the same, substantially as described.

2. As a means for controlling the feed motion of a type-writing machine,a ratchetwhecl which is given motion by the paperoarriage, a detent-barwhich reciprocates in a plane parallel with the plane of theratchetwheel and is provided with a detent-tooth engaging said wheel atone side of the latter, a spring-actuated oscillatory detent-arm pivotedto said bar and adapted to engage the said wheel at the opposite sidethereof, said detenttooth and detent-arm being moved in the plane of theratchet-teeth alternately into and out of engagement with the same, aplurality of stops, consisting of separately-movable1011- gitudinalsliding bars arranged in the same plane with the detent-arm and adaptedto limit the movement of the sam e and operative connections between thekeys and said detentbar and stop-bars for actuating the same, sub

stantially as described.

As a means for controlling the feed motion of a type-writing machine ofthat class having endwisereciprocatory key-actuating bars, aratchet-wheel actuated by the papercarriage, a detent-bar whichreciprocates in a plane parallel with the plane of the ratchetwheel andis provided with a detent-tooth engaging the wheel at one side of thelatter, a spring-actuated oscillatory detent-arln pivoted to said barand adapted to engage said wheel at theopposite side thereof, saiddetenttooth and detent-arm being moved in the to the detent-bar, aplurality of rock-shafts extending transversely of the key-actuatingbars and each of which is actuated by one or more of said bars throughthe medium of projections thereon and operative connections between saidrock-shafts and said detentbar and stops, substantially as described.

4. As a means for controlling the feed motion of a type-writing machineof that class in which motion is transmitted from the keys to the typesthrough the medium of endwisereciprocatory key-actuating bars, aratchetwheel which is given motion by the papercarriage, an endwise-reciprocating detentbar moving transversely with relation to theratchet-wheel and provided with a detenttooth engaging the wheel at oneside of the latter, an oscillatory spring-actuated detentarm pivoted tosaid bar and adapted to engage the said wheel at the opposite sidethereof, an endwise-sliding stop-bar, a rock-shaft mounted transverselyof the key-actuating bars and provided with a wing which is engaged witheach of the last-named bars, said rock-shaft having an arm which ispivoted to the detent-bar, another rock-shaft for actuatin g thestop-bar provided with a win g adapted for contact with projections onsaid keyactuating bars and a bell-crank lever connecting the last-namedrock-shaft with the said stop-bar, substantially as described.

5. As a means for controlling the feed motion of a type-writing machineof that class having endwise-reciprocatory key-actuating bars, aratchet-wheel which is moved by the paper-carriage, anendwise-reciprocating detent-bar arranged transversely with relation tothe ratchet-wheel and provided with a detent-tooth engaging the wheel atone side of the latter, an oscillatory, spring-actuated detent-armpivoted to said bar and adapted to engage the said wheel at the oppositeside thereof, a plurality of endwise-sliding stopbars and means foractuating the detentbar and stop-bars consisting of a plurality ofrock-shafts having wings which are acted on by projections of thekey-actuating bars, one of said rock-shafts having a rigid arm directlyconnected with the detent-bar another of said rock-shafts having a rigidarm directly connected with one of the stop-bars and another rock-shafthaving a rigid arm which is connected with another slide-bar through themedium of a bell-crank lever, substantially as described.

6. The combination with a machine-frame "comprising a rectangularbase-casting, end

wise-reciprocatory key-actuating bars, bellcrank levers for transmittingmotion from the keys to the bars and from the bars to the type-levers,transverse pivot-rods supporting said bell-crank levers, transverserock-sh afts, extending over the bars, for actuating the

